ENGLISH
INSTALLATION AND SERVICING MANUAL
R 18 - C 18 R 24 - C 24R 28 - C 28 R 35 - C 35
Page 1: ...E N G L I S H INSTALLATION AND SERVICING MANUAL R 18 C 18 R 24 C 24 R 28 C 28 R 35 C 35...
Page 2: ...It can be taken to a special recycling centre managed by the local authorities or to a dealer who offers this service Separate disposal of a domestic appliance avoids possible negative consequences fo...
Page 3: ...ted from the control panel 33 4 3 Adaptation of the power to the heating system 37 4 3 1 GAC adjustment 38 4 4 Important notes 39 4 5 Wiring diagram 40 4 6 Error codes 41 3 INSTALLATION INSTRUCTIONS 1...
Page 4: ...t was expressly designed Any other use is to be considered improper and therefore dangerous 1 1 general warnings The instruction booklet is an integral and essential part of the product and must be ke...
Page 5: ...ser as well as other documents concerning the appliance inserted in the envelope inside the packaging The user must keep this documentation safe for future consultation Inform the user about the impor...
Page 6: ...h affect the operating safety of the appliance Attention To tighten or loosen the screwed fittings use only appropriate fixed spanners Incompliant use and or inappropriate tools can cause damage e g w...
Page 7: ...T max Max domestic hot water temperature C Electrical characteristics 21 Electrical power supply 22 Consumption 23 Protection rating D Countries of destination 24 Direct and indirect countries of dest...
Page 8: ...fac es must be clean see system protection ACCESSO RIES sect in domestic price list This protection can intervene only if the electricity and gas supplies are connected If one of the two is not availa...
Page 9: ...CATION OF THE MAIN COMPONENTS AND DIMENSIONS View from above View from below NOTE Further details in the section Technical Information on the boiler page of the www unicalag it website KONe 18 24 R KO...
Page 10: ...10 View from above View from below KONe 28 35 R KONe 28 35 C 15 26 20 17 22 11 24 18 4 25 10 1 2 5 8 12 16 13 23 3 27 22 11 24 18 4 25 10 3 5 8 12 13 15 26 20 23 27...
Page 11: ...14 Boiler drain valve 15 Filling valve 16 Diverter valve 17 Plate heat exchanger 18 FL FH VM Fan 19 AF AS PV Flue gas pressure switch 20 Safety valve 21 Automatic by pass 22 rb SRR Return temperature...
Page 12: ...2 3 DIAGRAM OF FLOW RATE PRESSURE AVAILABLE FOR INSTALLATION Flow rate l h Flow rate l h Avaible Head m c a metres of water Avaible Head m c a metres of water MODULATING PUMP DIAGRAM OF FLOW RATE PRES...
Page 13: ...nominal kW 17 23 27 32 Seasonal space heating energy efficiency s 93 92 93 93 Seasonal efficiency class in heating mode A A A A For CH only and combination boilers useful heat output Useful Heat Outpu...
Page 14: ...5 0 5 Maximum domestic hot water circuit pressure bar 6 6 6 6 Domestic hot water specific flow rate t 30 C D l min 11 2 11 2 13 16 Production of D H W in continuous operation with t 45 K l min 7 4 7 4...
Page 15: ...s dust and or if there are aggressive corrosive vapours present in the installation room the appliance must be protected suitably and must be able to operate independently from the air in the room Att...
Page 16: ...ob jects due to failure to comply with the instruction above H P L As well as the appliance the packaging contains A DOCUMENTATION ENVELOPE System booklet User operating instructions booklet Instruct...
Page 17: ...its weight The wall must not be made of flammable material KONe Since the temperature of the wall on which the boil er is installed and the temperature of the coaxial exhaust pipe do not exceed in no...
Page 18: ...Horizontal exhaust and intake terminals directed outside via coaxial or double pipes C33x C33 TOTAL LENGTH LA intake L Exhaust COAXIAL 60 100 DOUBLE 80 FROM m TO m FROM m TO m 1 7 0 5 0 5 40 20A 20S C...
Page 19: ...in the MT018 available on the website ATTENTION For the type of connection B23P the room follows the same installation rules for boilers with natural draught Please note these values relate to exhaus...
Page 20: ...lue gas exhaust refer to the Technical Information section on the boiler page of the www unicalag it website It is recommended to only use original Unical exhaust pipes The supplier will have no contr...
Page 21: ...2 Sc BOILER DRAIN S cond CONDENSATION DRAIN Rc FILLING VALVE Svs SAFETY VALVE DRAIN Provide a drain pipe with funnel and a trap that lead to a suitable drain in cor respondence of Svs This drainage m...
Page 22: ...his operation must be performed carefully respect ing the following phases open the radiator vent valves and make sure the automatic valve is working properly in the boiler open the filling tap gradua...
Page 23: ...nals TA1 OT after having removed the jumper ON OFF room thermostat connection RT OT A3 4 32 1 6 5 SE TA 1 OT TA 2 WH WH Y Y BK BK TA ON OFF Danger Only a qualified technician may per form the electric...
Page 24: ...oiler installation requires electric al con nection to the mains power supply This connection must be made up to standard as required the regulations in force Remember that a bipolar switch must be ns...
Page 25: ...oes the gas to be used correspond to the boiler calibration gas otherwise perform the boiler conversion in order to use the gas available see section 4 3 this operation must be carried out by technica...
Page 26: ...ternates between SP and the flow temper ature the boiler operates at maximum output Perform combustion analyses 4 DISABLING The calibration function stays active for 15 min utes To disable the CALIBRA...
Page 27: ...in steady state conditions see par 3 11 1 3 11 2 Positioning the probes 3 12 ADJUSTING THE BURNER KONe R 18 KONe C 18 Type of Gas Effective Ouput kW Heating Thermal kW Capacity Supply Press mbar Fan s...
Page 28: ...5 0 43 kg h 2 17 kg h A P G230 4 3 27 2 4 4 28 0 20 9 6 9 0 0 34 m h 2 18 m h 0 2 Acceptable range for G20 G25 0 2 R Acceptable range for G31 G230 If the CO2 value detected is beyond the recommended r...
Page 29: ...tart up output xx Minimum output 0 EDITING THE VALUE When the flame flashes correct the value with keys C or C VALUES FROM TO DEFAULT 3 3 0 corresponds to about 0 5 points of CO2 SELECTION Select the...
Page 30: ...EM Act on parameter HP par 4 2 SE parameters list to achieve the value corresponding to the desired output The user is NOT authorised to activate the func tion described below E g KONe 24 to decrease...
Page 31: ...01 Relation between the temperature C and the nom resistance Ohm of the heating probe SR and of the domestic hot water probe SS Example At 25 C the nominal resistance is 10067 Ohm At 90 C the nominal...
Page 32: ...ater pressure is below 0 4 bar Without request close the shut off valves of the heating circuit open the drain valve to make the water pressure decrease Be fore pressurising again check the pressure o...
Page 33: ...e heat ing sensor is faulty External temperature if there is no external probe or if it is faulty Domestic hot water temperature if there is no sensor or if it is faulty Return temperature if there is...
Page 34: ...of the position 01 in which the error is stored DISPLAY Press the key B to display the sequence of faults between 01 12 EDIT VALUE RESET Press the key D for over 5 seconds to reset the whole errors lo...
Page 35: ...10 0 30 External probe on Regolafacile 0 20 C 30 10 C default 10 0 5 30 Night reduction 0 T A default 5 30 night reduction 0 1 Domestic hot water pre heat function 0 Not active default 1 Active 0 100...
Page 36: ...mum fan speed 10 750 rpmx100 0 199 Maximum fan speed 10 5000 r pmx100 1 20 Heating control proportional 1 20 Heating control integrative 1 20 Heating control derivative 1 20 Domestic hot water control...
Page 37: ...ion of the tank contact the LPG supplier or a person qualified in compliance with law If the tank has not been profession 4 3 ADAPTATION TO THE USE OF OTHER GAS Gas Conversion The boilers are produced...
Page 38: ...StArt scrolls on the display the function is active when the symbols flash Note After the ignition sequence which can also take place after a few attempts the boiler performs the calibration which co...
Page 39: ...board MODULATION BOARD A universal board B memory board The memory board is programmed by de fault for METHANE gas operation In the event of LPG operation the GT pa rameter must be edited Factory par...
Page 40: ...1 76 5 TLC TL SRR G G WH WH WH BL A6 VI WH R Mod On Off VG EV2 EV1 OR A3 4 32 1 6 5 SE BK TA 1 OT TA 2 WH WH Y Y BK BK MDV PK WSC YONOS GND WH SL BK CASING 4 5 WIRING DIAGRAM Practical connection boar...
Page 41: ...y sensor 22 45 2 WATER OVERPRESSURE detected if the H2 O pressure Transducer is present with pressure 2 5 bar it is reset automatically when H2 O pres sure 2 bar Wait for the values to return to defau...
Page 42: ...f the sensor see table Res Temp Par 4 or its connections 12 15 HEATING SENSOR 11 Heating sensor fault Check the efficiency of the sensor see table Res Temp Par 4 or its connections 38 16 FACTORY PARAM...
Page 43: ...circuit problems Gas Valve Check the Gas Valve connec tions Replace the Gas Valve 3 Replace the Modulation Board BLOCK 32 Gas Valve opening time beyond limit time Check the parts that generate the hea...
Page 44: ...ght to bring those changes that it will hold necessary to it own products or profits without jeopardizing its essential characteristics 46033 casteldario mantova italia tel 39 0376 57001 fax 39 0376 6...